add Lolin_C3_Pico board

_board/lolin_c3_pico.md

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+---
+layout: download
+board_id: "lolin_c3_pico"
+title: "LOLIN C3 Pico Download"
+name: "LOLIN C3 Pico"
+manufacturer: "LOLIN"
+board_url: "https://www.wemos.cc/en/latest/c3/c3_pico.html"
+board_image: "lolin_c3_pico.jpg"
+date_added: 2023-5-24
+family: esp32c3
+bootloader_id: lolin_c3_pico
+features:
+  - Wi-Fi
+  - USB-C
+  - Bluetooth/BTLE
+  - Breadboard-Friendly
+  - Battery Charging
+
+---
+
+A mini Wi-Fi & Bluetooth LE board based on ESP32-C3FH4.
+
+## Features
+
+- based ESP32-C3 WIFI & Bluetooth LE RISC-V Single-Core CPU
+- Type-C USB
+- 4MB Flash
+- Lolin I2C Port (does not match QWIIC/Stemma-Qt pinout)
+- RGB LED (IO7)
+- Clock speed: 160 Mhz
+- 12x Digital IO
+- ADC, I2C, SPI, UART
+- Size: 25.4 mm x 25.4 mm
+- Weight: 2.6g
+- Compatible with LOLIN D1 mini shields
+- Compatible with MicroPython, Arduino and ESP-IDF
+- Default firmware: MicroPython
+
+
+## Purchase
+
+* [AliExpress](https://www.aliexpress.com/item/1005004866531117.html)
+
+## Learn More
+
+* [Manufacturer Specifications](https://www.wemos.cc/en/latest/c3/c3_pico.html)
+* [ESP32-C3 Datasheet](https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf)
+* [Schematic](https://www.wemos.cc/en/latest/_static/files/sch_c3_pico_v1.0.0.pdf)
+* [Dimension](https://www.wemos.cc/en/latest/_static/files/dim_c3_pico_v1.0.0.pdf)